A wave of support for Ai Weiwei

Artist and dissident Ai Weiwei is in hot water with Chinese authorities again. Having just appealed against a fine of 2.4 million dollars for tax evasion, he is now facing charges of pornography for a picture published two years ago. Ai is an outspoken critic of what many see as a general crackdown on dissent by Beijing in response to the Arab Spring. Our reporters Joris Zylberman and Henry Morton went to find out more.